6. Scroll down to the 'Edit Signature' section and click once at the top of the window (You should be placing your cursor at the very start of the window. If you are changing a Siggie, delete the old one)

7. Click on ‘Insert Image’ in the message menu (10th icon to the right, between the insert link and insert email icons)

8. Paste (CTRL V) your new URL in the window that pops up

9. Click on the ‘Insert Image’ button in the pop-up

10. Click on ‘Save Changes’ at the bottom of the Change Signature page

Your new siggie should now display at the top of the page and should be visible in your posts.